Since 2009, Canada has invested more than $200 billion into extracting oil from the Alberta tar sands. Earlier this month, Prime Minister Justin Trudeau announced that his country had agreed to purchase the Trans Mountain pipeline from Kinder Morgan for…

For the past decade, researchers have been experimenting with switching individual genes on and off to determine what effect they have on growing trees. But they say they can now model the effects of switching all 21 lignin genes on or off in the lab,…